[justin72nova]

I notice while putting in my posi that the axle # that are stamped in on the passenger side has the first 2 letters as "JD" not "JC" like all other 72 Novas with a 3.08 open diff.
The rear end has never been replaced, since I'm the second owner and my Mom was the first.

 

[DANNO]

My 72 had a JD rear. Since I didn't know the history of the car, I didn't know whether or not it had been replaced. Looks original, though. Must'a been some JD's sneak in there. (I'm going to save it for my wagon.)